/* 公共的样式 */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
.nav{
    height: 50px;
    width: 100%;
    color: white;
    background-color: rgba(144, 141, 141, 0.5);

    display: flex;
    justify-content: center;
    align-items: center;
}
.nav>img{
    width: 40px;
    height: 40px;
    border-radius:50%;
    margin:5px 10px ;
}
.nav>.space{
    width: 60%;
    display: inline;
}
.nav>.blog-title{
    width: 100px;
}
.nav>.nav-span{
    width: 80px;
    text-decoration: none;
    color: white;
}

html, body {
    height: 100%;
    background-repeat: no-repeat;
    background-position: center;
    background-size: cover;
}
.container {
    width: 100%;
    height: calc(100% - 50px);

    display: flex;
    align-items: center;
    justify-content: center;
}